Product Description:

The SN32HLYY-LNK-NS-00 is a synchronous motor manufactured by Pacific Scientific for the Powersync Synchronous Motors series. This standard-construction unit provides constant-speed rotary power at 60 Hz for indexing tables, conveyors, and other industrial automation tasks where repeatable positioning is needed without closed-loop electronics. It can replace similarly sized induction gearmotors and offers higher holding torque at stall.

Electrical connection enters through a splash-proof terminal board that accepts a 1/2" NPS pipe thread conduit fitting, protecting the three-lead winding set from moisture and debris. The motor uses a NEMA 34 frame so it matches common face-mount gearheads and couplings. Each phase draws only 0.47 A at a rated supply of 120 V AC, a current limited by 38 Ω phase resistance and shaped by a sizable 383 mH phase inductance that smooths line harmonics. Internally, two laminated rotor stacks and a straight-key, single-ended shaft produce 480 oz-in of rated torque without feedback devices, so any position verification must come from the host machine controller. Rotor inertia is 0.038 oz-in-s², while the complete rotating assembly presents 0.29 oz-in-s² of reflected inertia to the load.

A static detent torque of 36 oz-in resists unintended movement when power is removed, and the design can momentarily withstand a pull-out load of 690 oz-in before synchronism is lost. Under continuous excitation, the shaft turns at 72 rpm, a fixed speed set by the line frequency and the eight-pole winding pattern. The case-to-ambient thermal resistance is 2 °C/W. Because the motor has splash-proof construction but no shaft seal, forced airflow around the housing is recommended for high-duty cycles. The straight-key, single-ended shaft simplifies coupling, and the lack of encoder feedback suits open-loop, constant-speed applications.